Results 91 to 100 of about 154 (134)
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Addition-curable phthalonitrile-functionalized novolac resin
High Performance Polymers, 2012A novel addition-curable novolac resin with phthalonitrile groups (PN) was successfully synthesized by a simple nucleophilic substitution reaction between the novolac resin and 4-nitrophthalonitrile. The final product was characterized with gel permeation chromatography (GPC), Fourier transform infrared (FT-IR) spectrometry, and ...
Boxing Zhang +7 more
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Catalytic graphitization of novolac resin for refractory applications
Ceramics International, 2018Abstract This study investigated how to induce graphite generation from the carbonization process of novolac resins using conditions that can be adopted for carbon-containing refractories (CCRs) production. The effect of boron oxide or boric acid (graphitizing agents), cross-linking additive (hexamethylenetetramine) and some processing parameters ...
S.I. Talabi +4 more
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Block copolymer modified novolac epoxy resin
Journal of Polymer Science Part B: Polymer Physics, 2003AbstractThe phase behavior of uncured and cured mixtures containing stoichiometric amounts of Epon164 novolac epoxy resin and 4,4′‐methylenedianiline combined with a nearly symmetric poly(methyl acrylate‐co‐glycidyl methacrylate‐b‐polyisoprene) diblock copolymer was investigated with small‐angle X‐ray scattering and transmission electron microscopy.
Bates, Frank S. +3 more
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An investigation of novolac resins by gel permeation chromatography
British Polymer Journal, 1971AbstractIn the preparation of novolac resins, three possible dimers with slightly different molecular dimensions may be produced in the polymerisation reaction. Gel permeation studies were carried out on four novolac resins prepared using different acid catalysts, and the results indicated that the nature of the catalyst influences the type and ...
P. G. Montague +3 more
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Structure and property relationships of fractionated novolac resins
SPIE Proceedings, 1997In previous paper', we described the performance of near-monodisperse novolak resins obtained through supercritical fluid extraction. The low molecular weight partner was found to be the key element for high contrast and high resolution of the reconstructed tandem resists.
K. Rex Chen +4 more
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The use of liquid chromatography for the characterization of novolac resins
Journal of Applied Polymer Science, 1993AbstractNovolac resins made by condensation of phenol or p‐cresol with formaldehyde in various mole ratios were analyzed by reversed‐phase high‐performance liquid chromatography (HPLC) and gel permeation chromatography (GPC). Number‐average molecular weights (Mn) of phenol novolacs were determined by GPC and vapor‐phase osmometry (VPO) and compared.
Ŝ. Podzimek, L. Hroch
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Hydrogen bonding in the novolac type phenolic resin blended with phenoxy resin
Polymer, 1997Abstract The hydrogen bond formation between novolac type phenolic resin (phenolic) and polyhydroxyl ether of bisphenol A (Phenoxy resin) were verified by infra-red (i.r.), gel permeation chromatography (g.p.c.) and nuclear magnetic resonance (n.m.r.). The i.r. spectrum of the ‘free’ hydroxyl group of the blend shows a maximum absorption area with 25
Hew-Der Wu, Chen-Chi M. Ma, Peter P. Chu
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Photocrosslinkable resins from novolac–epoxide reaction
Journal of Polymer Science: Polymer Chemistry Edition, 1975S. P. Panda, D. S. Sadafule
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Study on curing of novolac epoxy resin
Journal of Thermal Analysis, 1993J. P. Agrawal, N. M. Bhide, S. R. Naidu
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Novolacs: Synthetic Resins Suitable for Mounting Biological Materials
Transactions of the American Microscopical Society, 1980W G, Crumpton, R G, Wetzel
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